Reflect TTN_NEEDTEXT ???

[Oliver Twesten]

Hi Frank

You're right, it's long ago. I just peeked into my old code and here's what I can tell from a first glance:

- I added an own CToolTipCtrl member variable.

- I handled TTN_NEEDTEXT like this (can't remember why I needed to handle TTN_NEEDTEXTW and why I setup the range 0,0xffff???)
ON_NOTIFY_EX_RANGE (TTN_NEEDTEXTW , 0, 0xffff, OnToolTipNotify)

- I called EnableToolTips(FALSE) in PreSubclassWindow and added the whole client area as a tooltip.

	// disable window object tooltips
	EnableToolTips(FALSE);

	// add the whole client rect to the member tooltip control
	{
		CRect rcClient(0,0,0,0);
		GetClientRect(rcClient);
		ToolTips.AddTool(this,LPSTR_TEXTCALLBACK,&rcClient,1);
		ToolTips.EnableToolTips(TRUE);
	}

- in OnToolTipNotify, I get the mouse position in client coords and use a little function to get the "Item from point". Then I set the pointer (TOOLTIPTEXTA*)pNMHDR->lpszText to a buffer which holds the tooltip, set pResult=NULL and return FALSE (important!).

Btw. I allocated a buffer for the tooltip and always remember the rectangle of the last hovered column so that I don't have to re-search the item on every mouse movement.

Hope this helps

Oliver